Pittsburgh Steelers coach Mike Tomlin should have been penalized for stepping on the field Thursday night and the play will be reviewed for discipline over the next week, an NFL official confirmed to ESPN NFL Insider Adam Schefter.

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The NFL should fine Mike Tomlin for nearly interfering with Jacoby Jones' return whether it was intentional or not, Jamison Hensley writes. Analysis

In addition, the official running along with the play -- who allowed Tomlin to come between him and the Baltimore Ravens' Jacoby Jones -- could be downgraded, according to the source.

After the Steelers scored to close to 13-7 in the third quarter, Jones broke free down the sideline on the ensuing kickoff but slowed up with Tomlin on the white stripe near the field of play -- with his foot on the field at one point as Jones neared his location. Tomlin, who had his back to the play, was not penalized for unsportsmanlike conduct.

Tomlin said he didn't think he interfered with Jones.

"I always watch the returns on the JumboTron. It provides better perspective for me," Tomlin said. "I lost my placement as he broke free and saw at the last second how close I was to the field of play."

Tomlin was asked if he was aware of the rule that players and coaches have to stand behind the white line that separates the sidelines from the playing field.

"Tell me something I don't know. I do it quite often, like everybody else in the National Football League. I was wrong, I accept responsibility for it," he told reporters.

It was nine months ago at the Super Bowl that Ravens quarterback Joe Flacco took flak for suggesting to teammates that they should run out on the field to tackle Ted Ginn Jr. on the final play.

"That's exactly what he just did," Flacco said. "He was looking at the big screen the whole entire time, he knew where he was, he knew where Jacoby was. He pulled my move."